40 lines
545 B
C
40 lines
545 B
C
/*
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* File: crc8.h
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* Author: Emanuele Trabattoni
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*
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* Created on January 6, 2021, 3:12 PM
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*/
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#ifndef CRC8_H
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#define CRC8_H
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uint8_t CRC8(const uint8_t *data, uint8_t len) {
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uint8_t crc = 0x00;
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while (len--) {
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uint8_t extract = *data++;
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for (uint8_t tempI = 8; tempI; tempI--) {
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uint8_t sum = (crc ^ extract) & 0x01;
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crc >>= 1;
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if (sum) {
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crc ^= 0x8C;
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}
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extract >>= 1;
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}
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}
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return crc;
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* CRC8_H */
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